Fish forgets how to fish, acts like a dog

In a bizarre video from LiveLeak, a spotty fish appears to forget that it is indeed a fish and instead thinks it's a dog.

Swimming back and forth, it heads straight for the hands of humans dangling the water letting them pat it and, at one point, even throw it further into the water. But back it swims for more.

So much for a survival instinct!

Is this some kind of attempt at making evolution happen a little faster? Or maybe it was a dog in a past life and something's gone wrong in the re-wiring and it doesn't realise that it can't live outside of water?